Update source is a resource containing updates for Kaspersky Security 8 for Linux Mail Server databases.
The main update source is Kaspersky update servers. These are special Internet sites which contain updates for databases and program modules for all Kaspersky programs. If you connect to the Internet via a proxy server, you have to configure the proxy server connection settings.
To reduce the amount of Internet traffic, you can configure Kaspersky Security 8 for Linux Mail Server to update databases from a custom update source. HTTP or FTP servers or local folders on your computer can serve as custom updates sources.
If Kaspersky Security 8 for Linux Mail Server is managed using Kaspersky Security Center, you can select Kaspersky Security Center as the update source.